Enable strict typing for cert_expiry (#107860)

.strict-typing

@@ -114,6 +114,7 @@ homeassistant.components.button.*
 homeassistant.components.calendar.*
 homeassistant.components.camera.*
 homeassistant.components.canary.*
+homeassistant.components.cert_expiry.*
 homeassistant.components.clickatell.*
 homeassistant.components.clicksend.*
 homeassistant.components.climate.*

homeassistant/components/cert_expiry/__init__.py

@@ -14,8 +14,8 @@ PLATFORMS = [Platform.SENSOR]
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Load the saved entities."""
-    host = entry.data[CONF_HOST]
-    port = entry.data[CONF_PORT]
+    host: str = entry.data[CONF_HOST]
+    port: int = entry.data[CONF_PORT]
 
     coordinator = CertExpiryDataUpdateCoordinator(hass, host, port)
 
@@ -25,7 +25,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     if entry.unique_id is None:
         hass.config_entries.async_update_entry(entry, unique_id=f"{host}:{port}")
 
-    async def _async_finish_startup(_):
+    async def _async_finish_startup(_: HomeAssistant) -> None:
         await coordinator.async_refresh()
         await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 

homeassistant/components/cert_expiry/config_flow.py

@@ -35,7 +35,7 @@ class CertexpiryConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
     async def _test_connection(
         self,
         user_input: Mapping[str, Any],
-    ):
+    ) -> bool:
         """Test connection to the server and try to get the certificate."""
         try:
             await get_cert_expiry_timestamp(

homeassistant/components/cert_expiry/coordinator.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 from datetime import datetime, timedelta
 import logging
 
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
 from .const import DEFAULT_PORT
@@ -16,11 +17,11 @@ _LOGGER = logging.getLogger(__name__)
 class CertExpiryDataUpdateCoordinator(DataUpdateCoordinator[datetime | None]):
     """Class to manage fetching Cert Expiry data from single endpoint."""
 
-    def __init__(self, hass, host, port):
+    def __init__(self, hass: HomeAssistant, host: str, port: int) -> None:
         """Initialize global Cert Expiry data updater."""
         self.host = host
         self.port = port
-        self.cert_error = None
+        self.cert_error: ValidationFailure | None = None
         self.is_cert_valid = False
 
         display_port = f":{port}" if port != DEFAULT_PORT else ""

homeassistant/components/cert_expiry/helper.py

@@ -19,7 +19,7 @@ from .errors import (
 
 
 @cache
-def _get_default_ssl_context():
+def _get_default_ssl_context() -> ssl.SSLContext:
     """Return the default SSL context."""
     return ssl.create_default_context()
 
@@ -40,7 +40,7 @@ async def async_get_cert(
             server_hostname=host,
         )
     try:
-        return transport.get_extra_info("peercert")
+        return transport.get_extra_info("peercert")  # type: ignore[no-any-return]
     finally:
         transport.close()
 

homeassistant/components/cert_expiry/sensor.py

@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 from datetime import datetime, timedelta
+from typing import Any
 
 import voluptuous as vol
 
@@ -12,7 +13,7 @@ from homeassistant.components.sensor import (
 )
 from homeassistant.config_entries import SOURCE_IMPORT, ConfigEntry
 from homeassistant.const import CONF_HOST, CONF_PORT, EVENT_HOMEASSISTANT_START
-from homeassistant.core import HomeAssistant, callback
+from homeassistant.core import Event, HomeAssistant, callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.device_registry import DeviceEntryType, DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -42,12 +43,12 @@ async def async_setup_platform(
     """Set up certificate expiry sensor."""
 
     @callback
-    def schedule_import(_):
+    def schedule_import(_: Event) -> None:
         """Schedule delayed import after HA is fully started."""
         async_call_later(hass, 10, do_import)
 
     @callback
-    def do_import(_):
+    def do_import(_: datetime) -> None:
         """Process YAML import."""
         hass.async_create_task(
             hass.config_entries.flow.async_init(
@@ -80,7 +81,7 @@ class CertExpiryEntity(CoordinatorEntity[CertExpiryDataUpdateCoordinator]):
     _attr_has_entity_name = True
 
     @property
-    def extra_state_attributes(self):
+    def extra_state_attributes(self) -> dict[str, Any]:
         """Return additional sensor state attributes."""
         return {
             "is_valid": self.coordinator.is_cert_valid,

mypy.ini

@@ -900,6 +900,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.cert_expiry.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.clickatell.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true